766-50-7Relevant academic research and scientific papers
One-Pot Copper-Catalyzed Three-Component Reaction of Sulfonyl Azides, Alkynes, and Allylamines to Access 2,3-Dihydro-1 H-imi-dazo[1,2-a]indoles
Jin, Hongwei,Liu, Daohong,Liu, Yunkui,Zhou, Bingwei
supporting information, p. 1417 - 1424 (2020/04/27)
A copper-catalyzed multicomponent reaction of sulfonyl azides, alkynes, and allylamines affording 2,3-dihydro-1 H-imidazo-[1,2-a]indoles in moderate yields is reported. Four C-N bonds are constructed- by way of azide-alkyne cycloaddition (CuAAC) and double Ullmann-type coupling reactions in a one-pot process.
Palladium-Catalyzed Annulation of Aryltriazoles and Arylisoxazoles with Alkynes
Yuan, Hairui,Wang, Min,Xu, Zhenghu,Gao, Hongyin
supporting information, p. 4386 - 4392 (2019/08/12)
We developed herein a palladium-catalyzed annulation of aryltriazoles and arylisoxazoles with internal alkynes via C?H bond activation process. 4,5-disubstituted-3H-naphtho[1,2-d][1,2,3]triazoles and 4,5-disubstituted-naphtho[2,1-d]isoxazoles could be afforded in good yields, respectively. The starting materials are readily available and the scope and applications of this transformation were explored. The reaction offers a practical approach to naphthalene fused heterocycles. (Figure presented.).
Cyclic Vinyl(aryl)iodonium Salts: Synthesis and Reactivity
Kepski, Konrad,Rice, Craig R.,Moran, Wesley J.
, p. 6936 - 6939 (2019/09/30)
A convenient, highly regioselective synthesis of five-membered cyclic vinyl(aryl)iodonium salts directly from β-iodostyrenes is presented. An X-ray crystal structure confirms the identity of these heterocycles. These λ3-iodanes can be converted
Gold(i)-catalyzed cross-coupling reactions of aryldiazonium salts with organostannanes
Akram, Manjur O.,Shinde, Popat S.,Chintawar, Chetan C.,Patil, Nitin T.
supporting information, p. 2865 - 2869 (2018/05/03)
Gold(i)-catalyzed cross-coupling reactions of aryldiazonium salts with organostannanes are described. This redox neutral strategy offers an efficient approach to diverse biaryls, vinyl arenes and arylacetylenes. Monitoring the reaction with NMR and ESI-MS provided strong evidence for the in situ formation of Ph3PAuIR (R = aryl, vinyl and alkynyl) species which is crucial for the activation of aryldiazonium salts.
Efficient synthesis of a complete donor/acceptor bis(aryl)diyne family
Holmes, Brian T.,Pennington, William T.,Hanks, Timothy W.
, p. 2447 - 2461 (2007/10/03)
A facile route to a family of bis(aryl)diynes containing both an electron donating pyridine ring and an electron accepting iodobenzene has been developed. The convergent synthesis involves the coupling of 2-, 3-, or 4-bromopyridine with TMS-acetylene, followed by deprotection to form the first half of the molecule. Similarly, 2-, 3-, or 4-iodoaniline was coupled to TMS-acetylene after protection of the amine group as a diethyltriazine. After conversion of the triazine to an iodine, deprotection of the acetylene and formation of the corresponding bromophenyl-acetylene, the two halves of the molecule were coupled under Cadiot-Chodkiewicz conditions. Nine new compounds were prepared, each of which was found to thermally polymerize from the melt. None of the compounds underwent photochemical polymerization in the solid-state.
Selective and efficient access to ortho, meta and para ring-substituted phenylacetylene derivatives R-[C≡C-C6H4](x)-Y (Y:H, NO2, CN, I, NH2)
Lavastre, Olivier,Cabioch, Sandrine,Dixneuf, Pierre H.,Vohlidal, Jiri
, p. 7595 - 7604 (2007/10/03)
ortho, meta and para isomers of iodo and amino ring-substituted phenylacetylene as well as rod-like arylacetylene derivatives were prepared by a simple synthetic route involving three consecutive reactions: the palladium-catalysed carbon-carbon bond forma
Synthesis and Crystal Structure of 1,2:7,8:13,14:19,20-tetrabenzocyclotetracosa-1,7,13,19-tetraene-3,5,9,11,15,17,21,23-octayne
Guo, Li,Bradshaw, John D.,Tessier, Claire A.,Youngs, Wiley J.
, p. 243 - 244 (2007/10/02)
The title compound has been synthesized in a relatively high yield by the Glaser coupling reaction and characterized by X-ray crystallography and spectroscopy.
SYNTHESIS OF o-HALOGENOPHENYLACETYLENES VIA THE DIANION OF PHENYLACETYLENE
Hommes, H,Verkruijsse, H. D.,Brandsma, L.
, p. 2495 - 2496 (2007/10/02)
The o-halogenophenylacetylenes o-iodophenylacetylene, o-bromophenylacetylene and o-chlorophenylacetylene can be prepared by regiospecific reaction of iodine, bromine and hexachloroethane respectively with the dianion of phenylacetylene.
